Badger, all those changes sound great! I'm happy to be a trusted user.
richrf, URL masking means disguising where the domain is forwarded to in the address bar of the visitor's browser, and has the same effect on web crawlers or robots for search engines, so they cant distinguish one page on your site from another.
Not on GoDaddy.
As for masking with GoDaddy, here is how to do it:
Login, and under the "Domains" header choose My Domains.
Select the domain you wish to URL forward/mask.
Click the + next to Forwarding on the panel on the right.
Click Click here to see details or to modify.
If you wish to URL mask, check the tickbox, and save changes.